Defense and rebounding. After that, I try to find lost points (both on offense and defense) by eliminating mistakes that cost points. What I mean by this is that if I scout a team and see that they are 10 points better than us, I will try to find those 10 points by eliminating mistakes.
Going into a game, I have a game plan that shows the players how we are going to find those lost points, and beat the other team, even though they are better than us. You would be shocked at how easy it is to beat teams that are better than you if you do this. The longer the game goes on with a close score, the easier it is to find those points. The other team can't figure out what is going on either. That works against them mentally, creating more opportunities to recover lost points. My players really get into this. When players start actively playing this way, their basketball IQ goes way up.

1. chemistry, playing HS ball there's nothing that you can fear more than a team with chemistry that plays as one and supports each other. i wouldn't hold anyone above the rest and make sure the players understand that it's a team game.

2. conditioning and defense, you're not always going to have a guy who can put up 30 every night, or a big you can throw the ball to when you need buckets but you can always play defense and be good at it. a team that plays hard and can press the whole game will go places even if they struggle to score.